MIC CHECK: Stop singing to your radio and show the patrons of Onyx/Thin what you’re all about at “Check the Rhyme.” Fellow mic masters will break out their best hip-hop beats, karaoke-style. Fiftyfathms will be among the guests entertaining you at the pre-show. Be there at 9 p.m. to show off your skills or to simply enjoy the fun.

LONG LIVE THE KINGS: After 15 years in the game, hip-hop group, the Kottonmouth Kings, have been reinventing themselves year after year. They will take on the House of Blues tonight at 7 p.m. Tickets are $22.50 to $25.